I am having trouble understanding how to reduce fractions to its lowest term... All I can understand is I have to find the lowest number that will divide into both numerator and denominator. How do I understand the solution on how

Need help with this math question. Thanks for your help. Work must be shown and reduced to the lowest terms. 7/11-3/11 The directions to this question is subtract. Write the answer in lowest terms. Thanks so much for help.